It looks like you've set the icon as the content area's background.
Click the content area to select it
Go to the Fill panel or click Fill in the Control Strip
Click the Trash icon next to the file name
Thanks. I copied and pasted the icons in their respective places but no matter what I did I still had the same background issue.
I deleted the button, built a new one and then placed the icons using the Fill-Image tool. That did the trick.